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Author	SHA1	Message	Date
Bartosz Golaszewski	86aa023fa6	gpio: mockup: dynamically allocate memory for chip name [ Upstream commit ad6d8004fa29a8958381b60215e32d1e903b0492 ] Currently the chip name buffer is allocated on the stack and the address of the buffer is passed to the gpio framework. It's invalid after probe() returns, so the sysfs label attribute displays garbage. Use devm_kasprintf() for each string instead. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2017-11-30 08:39:13 +00:00
Bamvor Jian Zhang	0f98dd1b27	gpio/mockup: add virtual gpio device This patch add basic structure of a virtual gpio device(gpio-mockup) for testing gpio subsystem. The tester could manipulate such device through userspace(sysfs or char device) and check the result from debugfs. Currently, it support one or more gpiochip(determined by module parameters with base,ngpio pair). One could test the overlap of different gpiochip and test the direction and/or output values of these chips. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>	2016-09-26 11:47:14 -07:00

Author

SHA1

Message

Date

Bartosz Golaszewski

86aa023fa6

gpio: mockup: dynamically allocate memory for chip name

[ Upstream commit ad6d8004fa29a8958381b60215e32d1e903b0492 ]

Currently the chip name buffer is allocated on the stack and the
address of the buffer is passed to the gpio framework. It's invalid
after probe() returns, so the sysfs label attribute displays garbage.

Use devm_kasprintf() for each string instead.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-11-30 08:39:13 +00:00

Bamvor Jian Zhang

0f98dd1b27

gpio/mockup: add virtual gpio device

This patch add basic structure of a virtual gpio device(gpio-mockup)
for testing gpio subsystem. The tester could manipulate such device
through userspace(sysfs or char device) and check the result from
debugfs.

Currently, it support one or more gpiochip(determined by module
parameters with base,ngpio pair). One could test the overlap of
different gpiochip and test the direction and/or output values of
these chips.

Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2016-09-26 11:47:14 -07:00

2 Commits